1
GATE EE 2014 Set 1
Numerical
+1
-0
The figure shows the circuit of a rectifier fed from a 230 V (rms), 50Hz sinusoidal voltage source. If we want to replace the current source with a resistor so that the rms value of the current supplied by the voltage source remains unchanged, the value of the resistance (in ohms) is __________ (Assume diodes to be ideal)
2
GATE EE 2012
+1
-0.3
The $$i$$-v characteristics of the diode in the circuit given below are $$i = \left\{ {\matrix{ {{{v - 0.7} \over {500}}A,} & {v \ge 0.7\,V} \cr {0A,} & {v < 0.7\,V} \cr } } \right.$$\$

The current in the circuit is

A
$$10$$ mA
B
$$9.3$$ mA
C
$$6.67$$ mA
D
$$6.2$$ mA
3
GATE EE 2010
+1
-0.3
Assuming that the diodes an ideal in the given circuit, the voltage $${V_0}$$ is
A
$$4V$$
B
$$5V$$
C
$$7.5V$$
D
$$12.12V$$
4
GATE EE 2009
+1
-0.3
The following circuit has a voltage source $${V_s}$$ as shown in the graph. The current through the circuit is also shown

The element connected between $$' a '$$ and $$' b '$$ could be

A
B
C
D
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